OE Quality
60-Day Returns

Cardone 3R-504 Power Steering Reservoir
Overview of Cardone Power Steering Reservoir 3R-504
The Cardone Power Steering Reservoir 3R-504 is designed for select BMW models, providing a reliable solution for maintaining proper power steering fluid levels. This new, black plastic reservoir includes a cap and is remote mounted to fit seamlessly within your vehicle's power steering system.
- Compatible with BMW 525i, 528i, 528i xDrive, 530i, 535i, 535i GT, 535i xDrive, 535xi, 545i, 550i, 650i, 745i, 745Li, 750i, 750Li, 760i, 760Li, and X5 models
- Part number 3R-504 ensures precise fitment and quality
- Includes cap for secure fluid containment
- Constructed from durable black plastic material
- Remote mounted design for flexible installation
About the Cardone Power Steering Reservoir Line
The Cardone Power Steering Reservoir product line focuses on delivering dependable replacement reservoirs that meet OEM specifications. This line emphasizes quality materials and design features such as included caps and remote mounting options to accommodate various vehicle configurations. The 3R-504 reservoir is part of this line, engineered to maintain proper fluid levels and prevent leaks in BMW power steering systems.
Product Details and Features
The Cardone 3R-504 power steering reservoir is manufactured from durable plastic and comes in black, matching the original equipment appearance. It includes a cap to prevent fluid contamination and evaporation. This reservoir is remote mounted, allowing for easier access and installation in the engine bay. While mounting brackets and hardware are not included, the reservoir is designed to fit directly into the existing mounting points of compatible BMW models. The part is new and free from e-waste concerns.
Common Applications and Problem Solving
- Replaces cracked or leaking original power steering reservoirs
- Prevents foaming fluid caused by trapped air in the power steering system
- Addresses fluid leaks due to reservoir body damage
- Supports maintenance of proper fluid levels to avoid steering performance issues
- Compatible with power steering systems requiring remote mounted reservoirs
Installation Notes and Tips
When installing the Cardone 3R-504 reservoir, ensure the power steering system is depressurized and fluid is drained to avoid spills. The reservoir mounts remotely, so verify the location behind the engine bay or near the power steering pump as per your BMW model. Since mounting brackets and hardware are not included, reuse existing components or source compatible hardware. After installation, bleed the power steering system to remove trapped air and prevent foaming fluid.
Quality Assurance and Warranty
Cardone power steering reservoirs are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 3R-504 part is new and undergoes quality checks to maintain consistency. While specific warranty details are not provided, Cardone products typically come with limited warranties covering defects in materials and workmanship.
| Brand | Cardone |
|---|---|
| Part Number | 3R-504 |
| Position | Power Steering Reservoir |
| Cap Included | Yes |
| Color | Black |
| E-Waste | No |
| Fittings Included | No |
| Material | Plastic |
| Mounting Bracket Included | No |
| Mounting Hardware Included | No |
| Package Contents | Reservoir |
| Product Condition | New |
| Remote Mounted | Yes |
This part fits 61 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2013 | BMW | X5 | N/A | Power Steering Reservoir |
| 2012 | BMW | X5 | N/A | Power Steering Reservoir |
| 2011 | BMW | X5 | N/A | Power Steering Reservoir |
| 2010 | BMW | 528i | N/A | with Active Steering; Power Steering Reservoir |
| 2010 | BMW | 528i xDrive | N/A | with Active Steering; Power Steering Reservoir |
| 2010 | BMW | 535i | N/A | Power Steering Reservoir |
| 2010 | BMW | 535i GT | N/A | Power Steering Reservoir |
| 2010 | BMW | 535i xDrive | N/A | Power Steering Reservoir |
| 2010 | BMW | 550i | N/A | with Active Steering; Power Steering Reservoir |
| 2010 | BMW | 650i | N/A | with Active Steering; Power Steering Reservoir |
| 2010 | BMW | X5 | N/A | Power Steering Reservoir |
| 2009 | BMW | 528i | N/A | with Active Steering; Power Steering Reservoir |
| 2009 | BMW | 528i xDrive | N/A | with Active Steering; Power Steering Reservoir |
| 2009 | BMW | 535i | N/A | Power Steering Reservoir |
| 2009 | BMW | 535i xDrive | N/A | Power Steering Reservoir |
| 2009 | BMW | 550i | N/A | with Active Steering; Power Steering Reservoir |
| 2009 | BMW | 650i | N/A | with Active Steering; Power Steering Reservoir |
| 2009 | BMW | X5 | N/A | Power Steering Reservoir |
| 2008 | BMW | 528i | N/A | with Active Steering; Power Steering Reservoir |
| 2008 | BMW | 535i | N/A | Power Steering Reservoir |
| 2008 | BMW | 535xi | N/A | Power Steering Reservoir |
| 2008 | BMW | 550i | N/A | with Active Steering; Power Steering Reservoir |
| 2008 | BMW | 650i | N/A | with Active Steering; Power Steering Reservoir |
| 2008 | BMW | 750i | N/A | Power Steering Reservoir |
| 2008 | BMW | 750Li | N/A | Power Steering Reservoir |
| 2008 | BMW | 760Li | N/A | Power Steering Reservoir |
| 2008 | BMW | X5 | N/A | Power Steering Reservoir |
| 2007 | BMW | 525i | N/A | with Active Steering; Power Steering Reservoir |
| 2007 | BMW | 530i | N/A | with Active Steering; Power Steering Reservoir |
| 2007 | BMW | 550i | N/A | with Active Steering; Power Steering Reservoir |
| 2007 | BMW | 650i | N/A | with Active Steering; Power Steering Reservoir |
| 2007 | BMW | 750i | N/A | Power Steering Reservoir |
| 2007 | BMW | 750Li | N/A | Power Steering Reservoir |
| 2007 | BMW | 760Li | N/A | Power Steering Reservoir |
| 2006 | BMW | 525i | N/A | with Active Steering; Power Steering Reservoir |
| 2006 | BMW | 530i | N/A | with Active Steering; Power Steering Reservoir |
| 2006 | BMW | 550i | N/A | with Active Steering; Power Steering Reservoir |
| 2006 | BMW | 650i | N/A | with Active Steering; Power Steering Reservoir |
| 2006 | BMW | 750i | N/A | Power Steering Reservoir |
| 2006 | BMW | 750Li | N/A | Power Steering Reservoir |
| 2006 | BMW | 760i | N/A | Power Steering Reservoir |
| 2006 | BMW | 760Li | N/A | Power Steering Reservoir |
| 2005 | BMW | 525i | N/A | with Active Steering; Power Steering Reservoir |
| 2005 | BMW | 530i | N/A | with Active Steering; Power Steering Reservoir |
| 2005 | BMW | 545i | N/A | with Active Steering; Power Steering Reservoir |
| 2005 | BMW | 745i | N/A | Power Steering Reservoir |
| 2005 | BMW | 745Li | N/A | Power Steering Reservoir |
| 2005 | BMW | 760i | N/A | Power Steering Reservoir |
| 2005 | BMW | 760Li | N/A | Power Steering Reservoir |
| 2004 | BMW | 525i | N/A | with Active Steering; Power Steering Reservoir |
| 2004 | BMW | 530i | N/A | with Active Steering; Power Steering Reservoir |
| 2004 | BMW | 545i | N/A | with Active Steering; Power Steering Reservoir |
| 2004 | BMW | 745i | N/A | Power Steering Reservoir |
| 2004 | BMW | 745Li | N/A | Power Steering Reservoir |
| 2004 | BMW | 760i | N/A | Power Steering Reservoir |
| 2004 | BMW | 760Li | N/A | Power Steering Reservoir |
| 2003 | BMW | 745i | N/A | Power Steering Reservoir |
| 2003 | BMW | 745Li | N/A | Power Steering Reservoir |
| 2003 | BMW | 760Li | N/A | Power Steering Reservoir |
| 2002 | BMW | 745i | N/A | Power Steering Reservoir |
| 2002 | BMW | 745Li | N/A | Power Steering Reservoir |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.